Images inside links are not parsed correctly when they are in the _delayed url_ format

[RobertDober]

[![Travis][travis badge]][travis]
[![Hex.pm Version][hex version badge]][hex]
[![Hex.pm License][hex license badge]][hex]
[![Erlang Versions][erlang version badge]][travis]
[![Build Tool][build tool]][hex]
[![Donations][liberapay badge]][liberapay]

...

<!-- Badges -->
[travis]: https://travis-ci.org/eproxus/unite
[travis badge]: https://img.shields.io/travis/eproxus/unite/master.svg?style=flat-square
[hex]: https://hex.pm/packages/unite
[hex version badge]: https://img.shields.io/hexpm/v/unite.svg?style=flat-square
[hex license badge]: https://img.shields.io/hexpm/l/unite.svg?style=flat-square
[erlang version badge]: https://img.shields.io/badge/erlang-21%20to%2024-blue.svg?style=flat-square
[build tool]: https://img.shields.io/badge/build%20tool-rebar3-orange.svg?style=flat-square
[liberapay badge]: https://img.shields.io/liberapay/receives/eproxus.svg?logo=liberapay&style=flat-square
[liberapay]: https://liberapay.com/eproxus/

Réferences:
pragdave/earmark#457
https://github.com/eproxus/unite/blob/v0.4.0/README.md
elixir-lang/ex_doc#1635

[RobertDober]

This is low priority because this form is not used often and can be replaced by the inline form
e.g.

[![CI](https://github.com/pragdave/earmark/actions/workflows/ci.yml/badge.svg)](https://github.com/pragdave/earmark/actions/workflows/ci.yml)